A new lower bound on the density of vertex identifying codes for the infinite hexagonal grid.
Cranston, Daniel W. ; Yu, Gexin
The Electronic Journal of Combinatorics [electronic only], Tome 16 (2009), / Harvested from The Electronic Library of Mathematics
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Publié le : 2009-01-01
EUDML-ID : urn:eudml:doc:230892 
@article{05686816,
     title = {A new lower bound on the density of vertex identifying codes for the infinite hexagonal grid.},
     journal = {The Electronic Journal of Combinatorics [electronic only]},
     volume = {16},
     year = {2009},
     zbl = {1186.05070},
     language = {en},
     url = {http://dml.mathdoc.fr/item/05686816}
}

Cranston, Daniel W.; Yu, Gexin. A new lower bound on the density of vertex identifying codes for the infinite hexagonal grid.. The Electronic Journal of Combinatorics [electronic only], Tome 16 (2009) . http://gdmltest.u-ga.fr/item/05686816/